Reinforced fiber tip for writing extra-fine lines Extra-fine fiber tip is reinforced for reliably precise lines. Protective metal sleeve houses the tip for durability. Steady liquid ink flow for smooth writing. Includes a pocket clip for convenient attachment to your pocket, notebook, binder, or other nearby items. Can be used on most surfaces. Sure-click cap helps prevent the ink from drying out. Nonrefillable. Pilot Pens part of a large selection of office supplies. Made by Pilot.